Who postulated the exchange of evidence principle?

Question

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The exchange of evidence principle was postulated by Edmond Locard, the founder of the Institut de Police Scientifique de Lyon, which was the first crime laboratory in the world. Locard formulated the principle that "every contact leaves a trace" and that every person or object that comes into contact with another leaves some evidence behind, which can be used to link suspects to a crime scene or to each other.

Who Postulated the Exchange of Evidence Principle